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(No Model.) 2 Sheets-Sheet 1.

G. M. BUNKER.

CASH INDICATOR AND RECORDER.

Patented May 21, 1895.

ATT'Y R. i T

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THE nouns Firms :0, FHQYO-LITHD. WASHINGTON o c,

(No Model.) 2 Sheets-Sheet 2.

G. M. BUNKER.

CASH INDICATOR AND RECORDER.

No. 539,504; Patented May 21, 1895.

UNrTnD STATES PATENT Orrrcn.

CHARLES M. BUNKER, OF BOSTON, ASSIGNOR OF ONE-lIALF TO PETER FORG, OFSOMERVILLE, AND ALTER VANDENBURGH, OF MELROSE, MASSACHU- SETTS.

CASH INDICATOR AND RECORDER.

SPEGIFICATION forming part of Letters Patent No. 539,504, dated May 21,1895.

Application filed November 16, 1894. Serial No 52 No model.)

To aZZ whom it may concern:

Be it known that 1, CHARLES M. BUNKER, of Boston, county of Suffolk, andState of Massachusetts, have invented an Im provement inOaslrltcgisters, of which the follow ing description, in connection withthe accompanying drawings, is a specificatioinlike letters and figureson the drawings representing like parts.

This invention relates to cash registers of that class employing asingle key or lever to effect the printing of the amount to heregistered, and has for its object to improve, simplify and cheapen theconstruction of the same.

The particular features of this invention will be pointed out in theclaims at the end of this specification.

Figure l is a front elevation of a cash-registerembodying thisinvention; Fig. 2, a rear elevation, partially broken out, of thecashregister shown in Fig. 1; Fig. 3,a sectional detail to be referredto, the section being taken on the line 3 3, Fig. 2, looking toward theright; and Fig. 4c, a transverse sectional detail to be referred to.

A represents the upright portion of a casing containing the operatingparts of my improved cash register. The casin g A, rests upon a bottomframe or casing A, provided with the drawer A The upright casing Aconsists of a front plate a, a back plate a, and side plates a a theback plate a, being provided with a substantially large door a which isonly shown in Fig 4, and by means of which access may be had to theoperating parts for repair, renewal, &c. The front plate a of theupright casing A, is provided with a dial a having graduationsindicative of the amount of money to beregistered. The front plate a, isprovided near its upper end with a substantially large opening a, for apurpose as willbe described.

The upright casing A contains within it, a vertical wall or partition B,which divides the easing into two chambers or compartments B, B the wallB, and the front plate a, formiug the chamber B, and the wall B, and theback plate a, and its door, forming the other chamber B The dial a onthe front plate a, has cooperating with it a pointer aiwhich is mountedupon a shaft a", extended through the vertical partition or wall B, andhaving its rear end supported in a cross bar a pro vided with inwardlyprojecting legs a by 3 which the cross bar is secured to the verticalpartition B, as by the set screws a, the inwardly projecting legsholding the cross bar a away from the partition B, so as to leave aspace between the said cross bar and the said partition. The shaft abetween the cross bar a and the partition or wall B has fast on it adrum, disk or wheel I), which may be a spoked wheel or may be made withsolid sides as herein shown. The drum Z), is provided on its periphery,with suitable type, corresponding to the indications on the dial a, andin practice, I prefer that the printing or type surface of the drum orwheel Z), should be made in the form of a metallic band Z), preferablyan electrotype, so that the band I), having thereon one set ofindications, numbers, or type, may be readily removed and replaced byanother band having a different set of indications or type, tocorrespond with a second dial a having different indications from thoseon the dial a. Shown in Fig. 1.

The printing type wheel Z), has co-operating with it a recording strip bof paper, normally wound upon a reel or drum b loosely mounted on a studor pin 11*, attached to the vertical partition B. The recording strip 0is automatically unwound from the reel as will be described, and woundupon a drum b loose on a stud b secured to the partition or wall B. Thereel b and drum 6 are located near the top of the casing above the typewheel Z), so that the recording strip passes above the type on thewheel, and intermediate of the recording strip and the type wheel is atype ribbon b preferably in the form of an endless band, which is passedabout two guide rolls b b secured to the partition B, and locatedsubstantially on the same horizontal line and above the type-wheel, sothat the type ribbon between the guide rolls 51b will be substantiallystraight. The type ribbon b passes about the guide pins h secured to thepartition or wall B, about the type wheel I), and the said type ribbonpasses about a corrugated or toothed drum or reel Z2 located below thetype wheel and loosely mounted on a stud Z1 secured to the partition orwall B. .The type ribbon'b", has co operating with it a tension device,shown as a flat spring I), located below the type wheel I), and havingone end secured to a stud or pin I2 011 the upright wall B, andhavingits front end provided with ears (9 supporting a bar or roller1)", over which the type ribbon 11 passes, the said spring actin g, inthe present instance, to force thelower part of the type ribbon upward,and thereby draw the said ribbon taut about its various guide rolls andpins.

The type wheel I), has co-operating with it, a hammer or platen c,secured to a lever c, pivoted as at c to the partition or wall B, abovethe recording strip 19 The lever c at its front end is connected byalink or rod 0 with the arm 3 of a lever 0 located near the bottom of theupright casing A, and pivoted as at c to the partition or wall B, thearm 3 of the lever 0 being extended through a slot in the side wall (0of the casing A and provided outside thereof, as herein shown, with afinger piece or key 0 The printing lever o, is normally held up by a.spring 0 secured. to the top of the casing A, as represented in Fig. 2.The automatic feed of the recording strip W, is effected on the returnmovement of the lever c, and this automatic feed is accomplished bymeans of a lifting pawl 0 pivoted as at c". to the lever a, and adaptedto engage the teeth 0 of a ratchet disk or wheel a, secured to orforming part of the drum or wheel I)", the pawl 0 being normally held inengagement with a tooth on the ratchet disk by a spring 0 herein shownas secured to the lever c, as at 0 The ratchet disk or wheel 0 has also00- operating with it a holding pawl 0 pivoted as at c", to thepartition or wall B, and normally held in engagement with a tooth 0 ofthe said ratchet disk by a spring 0 fastened as at 0 to the partition orwall B.

The holding pawl 0 in the present instance, is provided with arearwardly extending arm 0 which normally bears against a in orpro'ection 0 on a bar or lever 0 1.. 3 7

loosely mounted on the stud or pin Z), and in the present instance,extended diametrically across and beyond the ratchet disk 0 and providedat its opposite end with a pin 0 constituting a handle by which thelever or cross bar 0 may be turned in the direction indicated by arrow20, Fig. 2, to cause the stud or pin 0 to act on the arm 0 and turn theholding pawl c on its pivot, so as to disengage it from the ratchet disk0 This disengagement of the holding pawl permits the recording strip W,to be fed forward by hand, if it is so desired, without operating thelever 0 i Y The shaft a in the compartment B has fast on it asubstantially large disk (I, provided with graduations or indicationscorreas 5, and which may be supposed to'be five cents. The normalposition ofthe pointer a is vertical or in line with 'the zero mark.Shown in Fig. 1. When the shaft a and its pointer a are turned to theindication mark 5, as represented in Fig. 1, the disk (2 fast on theshaft turns with it, and brings the substantially large'indication 5 onit, in line with the opening a in the front wall or plate a of theupright casing A, thus giving to the customer an opportunity to see theamount of his purchase When the proper indication on the disk cl,appears in line with the opening of, the operator depresses the'lever c,

which downward movement is communicated to the printing lever c, bythelink or'rod 0 On the downward movement of the lever c, the platen orprinting block 0, forces the recording strip b and the type ribbon b",against the type in line with the printing block 0, thereby effecting arecord upon the strip h of the amount indicated by the number at theopening a It will be understood that the type on the wheel I), occupythe same relative position as corresponding indications occupy on thedisks a, and d; On the downward movement of the printing lever c, thepawl 0 is carried downward and brought into engagement with a new toothof the ratchet wheel 0 so that when the finger lever 0 is released, itand the printing lever c, are returned to their normal position by thespring 0 and the ratchet wheel e will be rotated the distance of one ormore teeth on the ratchet wheel, in the direction indicated by arrow 40,Fig. 2, which efiects a forward feed ofthe recording strip b and bringsa pawl d being normally held in engagement with. the ratchet disk at, bya spring d, herein shown as secured by a stud di to the partition orwall B. p

The operation of the ribbon feed is as follows: When the key lever 0 isdepressed in the direction indicated by arrow50, Fig. 2, the arm 01 ofthe said lever is moved upward or in the direction indicated by arrow60, and the pawl (Z is carried upward and into engagement with a newtooth on the ratchet disk (1, so that when the finger lever 0 isreturned to its normal position, the arm 01 IIO will move downward, andcarry with it the pawl (Z and thereby rotate the ratchet disk cl in thedirection indicated by arrow '70, which effects the feed or movement ofthe type ribbon (1 in the direction indicated by arrow 80. The drawer Ain the lower casing A is normally closed and is designed to beautomatically thrown open, when the finger key a, is depressed, and thisresult is accomplished in the present instance by providing a springwhich acts upon the rear side of the drawer to force it open, when thedrawer is unlocked or released by the depression of thelever c. In thepresent instance, the spring is shown as a steel strip (2, secured at ornear its center as at e, see Fig. 2, to the rear wall 6 of the easingA',the free ends of the spring 6 being we tended toward opposite sidesof the drawer and being in contact with the rear side 6 of the saiddrawer, as illustrated in Figs. 2 and 3. The drawer A is normally lockedby a latch 6 (see Fig. 3,) engaging the rear side of the drawerandpivoted as at 6 to the back wall 6 of the casing A, the said latch beingnormally held down as herein shown by a spring e, acting upon its uppersurface. The latch e, is connected by a rod e", to the arm (Z of thefinger lever WVhen the finger lever c is depressed, the rod 6 is movedbackward in the direction indicated .by arrow 60, Fig. 2, and the latche is elevated out of line with the top of the back wall 6 of the saiddrawer, thereby leaving the latter free to be forced outward by thespring 6. In order to give an audible notice to the purchaser, that thedrawer is being opened, a bell a is provided, it being located withinthe compartment B and provided with a striker e on the end of the levere pivoted as at e to asupport e and provided with an arm c extended intothe path of movement of a pivoted dog or lever c the said dog or leverhaving an arm e", shown by dotted lines, Fig. 3, which pro jects downinto the path of movement of the rear wall c of the drawer. The tapperarm or lever 6 is normally held in engagement with the bell e by aspiral spring a, wound about the pivot 6 in a manner now commonlypracticed.

The operation of the bell is as follows: \Vhen the drawer A is thrownoutward, the rear wall a strikes the arm 6 of the dog or lever c andcarries the said arm outward or in the direction indicated by arrow 90,Fig. 3, which movement of the arm e carries the dog or lever e backwardand against the arm 6 of the lever e thereby moving the lever e on itspivot, so as to carry the tapper or striker e away from the bell, and assoon as the drawer has passed beyond the arm 6 of the dog or lever e,the pressure upon the arm e and the tapper lever c is removed, and thespring e restores the tapper lever e to its normal position and bringsthe striker 6 against the bell e thereby giving an audible alarm thatthe drawer has been opened.

In practice, it may be desirable to mount a second disk within thecompartment 13 upon the shaft a which disk would be a duplicate of thedisk (1, but will register with an opening, not shown in the doorforming part of the rear Wall of the upright casing A.

I claim 1. In a cash register, the combination of the followinginstrumentalities, viz:a rotatable shaft, a type wheel fast thereon, arecording strip located above the type wheel, an endless type ribboninterposed between said type wheel and recording strip, a printing leverlocated above the recording strip, a pawl pivoted to said printinglever, a ratchet wheel engaged by said pawl, a drum or roll secured tothe ratchet wheel and upon which the recording strip is wound, a fingerlever, a link or rod joining said finger lever to the printing lover, apawl carried by said finger lever, a ratchet wheel engaged by said pawl,and a feed drum or roll secured to the ratchet wheel and operated by thepawl carried by the [inger lever and about which the endless ribbon ispassed to be fed or moved thereby, substantially as described.

2. In a cash register, the combination of the followinginstrumentalities, viz:a rotatable shaft, a type wheel fast thereon, arecording strip located above the type wheel, an enclless type ribboninterposed between said type wheel and recording strip, a printing leverlocated above the recording strip, a pawl pivoted to said printinglever, a ratchet wheel engaged by said pawl, a drum or roll secured tothe ratchet wheel and upon which the recording strip is wound, a fingerlever, a link or rod joining said finger lever to the printing lover, apawl carried by said finger lever, a ratchet wheel engaged by said pawl,and a feed drum secured to the ratchet wheel and operated by the pawlcarried by the finger lever and about which the endless ribbon is passedto be fed or moved thereby, an indicator disk fast on said shaft, asecond indicator disk or dial a and a pointer fast on the said shaft andcooperating with the dial a, substantially as described.

3. In a cash register, the combination of the followinginstrumentalities, viz:a casing A provided with a vertical wall orpartition B, forming two compartments B B an indicator dial a carried bythe front wall of the easing A, a pointer cooperating with said dial,ashaft a on which said pointer is mounted, a second indicating disk faston the shaft a and located within the compartment 13, a type wheel faston the shaft a and located within the compartment B a paper reel bpivotally secured to the wall B above the type wheel, a receiving drumor roller b pivotally secured to the wall B and upon which the paperfrom the reel b is wound, a type ribbon interposed between the paper andthe type wheel, a printing lever pivoted to the wall B above the typewheel, a pawl carried by said printing lever, a ratchet wheel secured tothe drum b and engaged by said pawl, a finger lever, a link joining saidfinger lever to the printing lever, a money drawer, a latch to lock thesame, a link or rod connecting said latch and finger lever, a bell, astriker therefor, a movable dog to act on said striker and actuated bysaid drawer, and means to throw the drawer out from its casing whenreleased by the latch, substantially as described.

4. In a cash register, the combination of the followinginstruinentalities, viz:the upright casing A, the horizontal casing A,upon which the casingA is secured, a partition or wall B, within thecasing A, the shaft 06, the pointer fast thereon outside of the casingA, the dial a carried by the front plate or wall of the easing A andwith which the pointer cooperates, the indicating disk fast on thecasing within the same and on one side of the partition or wall B, thefront plate of the casing being provided with an opening with which anindication of the disk registers, a type wheel fast on the shaft a onthe other side of the wall B, a recording paper strip located above thetype wheel, the reel b the drum b the ratchet wheel 0 secured to saiddrum, the pawl 0 cooperating with said ratchet wheel, the printing leverc pivoted to the wall B above the type wheel and recording strip, anendless type ribbon or band passed about the type wheel, a feed drum bfor said ribbon, a ratchet wheel (1 secured to said feed drum, a pawl dengaging said ratchet wheel, a finger lever c to which the pawl 01 ispivoted, a link or rod connecting the finger lever and the printinglever, a latch for the drawer, a rod connecting said latch to the fingerlever, a bell, a striker therefor, a dog or lever acted upon by thedrawer and actuating the striker, and means to throw the drawer out whenreleased by the finger lever, substantially as described,

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

CHARLES M. BUNKER.

Witnesses:

J AS. H. CHURCHILL, M. F. CROWLEY.

